X. OPERATION AND MAINTENANCE
These instructions are a general guide for operating
and maintaining the MACH 9, 230/240 VAC, 50Hz,
Coleman
®
-Mach
®
roof top heat pumps and remote hand
held controller.
This appliance is not intended for use by persons
(including children) with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge,
unless they have been given supervision or instruction
concerning use of the appliance by a person responsible
for their safety. Children should be supervised to ensure
that they do not play with the appliance and Cleaning
and user maintenance shall not be made by children
without supervision.
i. MODEL & SERIAL NUMBER
Your air conditioner or heat pump has been designed for
years of safe, dependable operation. These instructions
contain a general description on the operation of the unit,
how to set up and operate the controller, and a list of
routine maintenance items.
The first thing you should do is to write down the model
number and serial number of the unit. Both numbers can
be found on the data label on the unit.
Model No. __________________________________________
Serial No. ___________________________________________
ii. OPERATING GUIDELINES
• The air conditioner is designed to provide cooling
and dehumidification. A heat pump reverses the
refrigerant cycle to provide heating in cool weather.
The performance of both units can be optimized by
following the simple guidelines:
• Keep doors and windows closed to prevent the loss
of conditioner air.
• Keep the curtains closed to reduce heat gain.
• Set the temperature to a reasonable temperature.
• A low fan speed will reduce sound level and improve
dehumidification when the unit is cooling.
•
Properly adjust the air flow with the slides on the front
and rear of the ceiling assembly.
•
Never obstruct the air flow to the ceiling assembly.
•
Do not spray water or any cleaning fluid into the
ceiling assembly. The ceiling assembly should be
cleaned with a damp cloth.
• Do not put any object, including your hands, into the
openings of the ceiling assembly.
Reverse Cycle Operation
• Operation of the reverse cycle in ideal environmental
conditions may allow the unit to run in temperatures
as low as 4 to 5 Celsius.
• However operation of the reverse cycle in cold
environments combined with high humidity/
precipitation can result in the unit entering a defrost
cycle to alleviate icing of the outdoor coil. This can
happen at temperatures as high as 5 to 7.5 Celsius.
• At temperatures lower than those listed above, the
unit may enter a defrost cycle in order to allow the unit
to continue to operate. At the end of this cycle, the
indoor blower is shut off to minimize any cold air from
entering the coach and the reversing valve of the Heat
pump is unenergized, shifting the unit back into A/C
mode thawing the outdoor coil to remove frost or ice
that may have formed. This will take approximately
3 minutes, after which the reversing valve is re-
energized and the unit will begin to operate in reverse
cycle again. This defrost cycle may allow the unit to
run at temperatures as low as 0 to 1 Celsius. (For
more information on the operation of the defrost cycle,
refer to the Service Manual.)
iii. ADJUSTING THE AIR FLOW
The conditioned air is distributed through the ceiling
assembly. Slides on the front and rear of the ceiling
assembly can be moved to throttle the air flow to the front
and rear. The round supply louvers can be adjusted to
direct air flow from the ceiling assembly. The louvers
can be opened and closed to adjust airflow and also
spin 360 degrees allowing air flow to be directed where
desired. (Use of the supply louvers in heating mode is
suggested to keep air from stratifying in the coach.)
iv. HAND HELD CONTROLLER
The remote controller controls the operation of the air
conditioner or heat pump with an infrared signal to a
sensor on the ceiling assembly. For the best reception,
the remote should be pointing at the ceiling assembly
when changing set points and configuring the air
conditioner or heat pump.
Note: Should the remote be lost, the air conditioner
or heat pump can be controlled by buttons on the
ceiling assembly.
v. INITIAL CONFIGURATION
OF THE REMOTE CONTROLLER
The controller has been factory configured to operate
the heat pump. Should you wish to verify the correct
configuration, the controller must be in either the Heat
ELE or the Auto-changeover (Auto) mode.
A. Heat ELE mode.
1.
Press the Power Button.
2.
Using the Mode button, scroll through the various
setting by repeatedly pressing the Mode button until
Heat ELE is shown.
3.
Press the
MODE
&
FAN
Buttons for 5 seconds. The
temperatures on the screen will disappear and
HP
should appear at the bottom of the screen. If
nHP
is
shown, press the
UP
&
DOWN
buttons to select
HP
.
4.
After 5 seconds, the remote will revert to normal
operation.
B. Auto-changeover Mode
1.
Press the Power Button.
2.
Using the Mode button, scroll through the various
setting by repeatedly pressing the Mode button until
Auto is shown.
3.
Press the
MODE
&
FAN
Buttons for 5 seconds.
The temperatures on the screen will disappear and
HP, nHP
or
Gas
should appear at the bottom of the
screen. If
nHP or Gas
is shown, press the
UP
&
DOWN
buttons to select
HP
.
4.
After 5 seconds, the remote will revert to normal
operation.
vi. SELECTING THE MANUAL MODE
OF OPERATION
The air conditioner (if equipped with heat) or heat pump
has five modes of operation- Cooling, Heating, Auto
(Auto-changeover), Dry and Fan. To select the desired
operation, press the
MODE
button. Then use the
UP
or
DOWN
button to select the set point temperature. Select
the desired fan speed by pressing the
FAN
button. To
advance to the next mode, press the
MODE
button.
COOLING:
The unit will operate in cooling mode to
maintain the set point temperature. In the Cooling Mode,
four fan selections are available: High speed continuous,
Low speed continuous, Auto High or Auto Low. In Auto,
the Fan cycles on & off with the compressor. Use the
Fan button to select the desired setting. To advance to
the Heating mode, press the
MODE
button.
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